previous
  • 7 Trim Carpentry Secrets
    7 Trim Carpentry Secrets
  • Clever daily tip in your inbox
    Clever daily tip in your inbox
  • 7 Smart Kitchen Solutions
    7 Smart Kitchen Solutions
  • Design Inspiration
    Design Inspiration
  • Read FHB on Your iPad
    Read FHB on Your iPad
  • Radiant Heat Comparison
    Radiant Heat Comparison
  • Pro Tool Rental. Learn More.
    Pro Tool Rental. Learn More.
  • Hot Water Now
    Hot Water Now
  • Custom Flooring Inspiration
    Custom Flooring Inspiration
  • Classic Cabinets
    Classic Cabinets
  • Remodeling Articles
    Remodeling Articles
  • Video Series: Tile a Bathroom
    Video Series: Tile a Bathroom
  • 7 Small Bathroom Layouts
    7 Small Bathroom Layouts
  • All about Roofing
    All about Roofing
  • Basement Remodeling Tips
    Basement Remodeling Tips
  • Master Carpenter Videos
    Master Carpenter Videos
  • Tips & Techniques for Painting
    Tips & Techniques for Painting
  • Energy-Smart Details
    Energy-Smart Details
  • 9 Concrete Countertops Ideas
    9 Concrete Countertops Ideas
  • Video: Install a Fence
    Video: Install a Fence
  • Magazine Departments
    Magazine Departments
next
Pin It

New Window in an Old Opening

A leak-free installation depends on compatible materials and multiple layers of defense

The most difficult part of installing a flanged new-construction window in an old opening is ensuring that the window is fully able to resist water infiltration. Builder and worker-training consultant Bill Robinson says that you can avoid water infiltration by keeping in mind the four Ds: deflection, drainage, drying, and durability. Robinson begins a project by removing the old window carefully, making sure that he doesn't cut through the felt or housewrap. Next, he flashes the rough opening to prevent water from getting inside the building cavity. Robinson stresses the importance of using compatible products for the flashing system. Next, it's time to install the window, then flash the window. Finally, the window is cased, and then Robinson caulks and air-seals the window, again using products compatible with the flashing system.

Watch the video 

New Window in an Old Opening

Become a Fine Homebuilding Member

to view this article and over a thousand more

Learn More